CN108879100A - Terminal - Google Patents
Terminal Download PDFInfo
- Publication number
- CN108879100A CN108879100A CN201810717455.3A CN201810717455A CN108879100A CN 108879100 A CN108879100 A CN 108879100A CN 201810717455 A CN201810717455 A CN 201810717455A CN 108879100 A CN108879100 A CN 108879100A
- Authority
- CN
- China
- Prior art keywords
- switching element
- active switching
- intercom
- antenna
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
Landscapes
- Transceivers (AREA)
- Telephone Function (AREA)
Abstract
The disclosure is directed to terminals.Terminal includes：Intercom antenna, for receiving or sending intercommunication message, intercom antenna is the meander line antenna for being built in terminal；The feeding point formed on intercom antenna；The grounding point formed on intercom antenna；First active switching element is connected on feed circuit corresponding with feeding point；Second active switching element is connected on earthed circuit corresponding with grounding point；Intercom module is connect with the first active switching element and the second active switching element respectively.The disclosure can be realized the complete covering for entire U wave band wireless communication bandwidth by adjusting the different switch states of different active switching elements.
Description
Technical field
This disclosure relates to technical field of intelligent equipment more particularly to terminal.
Background technique
With the fast development of the communication technology, requirement of the people to intelligent terminal is also higher and higher.And at the same time,
Also gradually size is thinner, smaller etc. for terminal device；And these all bring huge challenge to Antenna Design.Especially for not
Same natural environment (indoor and outdoor, high buildings and large mansions, mountain area, forest, river sea etc.), requirement of the user to communication quality is also more next
It is higher.
In the prior art, mobile phone is only successfully accessed the wireless network based on communication standard, such as WiFi, 2G, 3G, 4G or 5G
After network, it could write to each other with other mobile phones, however, in the place that forest etc. covers without wireless network, user
It can not be got in touch with other users using mobile phone；In this case, intercom and neighbouring user can be used in user
Carry out intercommunication call.
Summary of the invention
To overcome the problems in correlation technique, the embodiment of the present disclosure provides a kind of terminal.The technical solution is as follows：
According to the first aspect of the embodiments of the present disclosure, a kind of terminal is provided, including：
Intercom antenna, for receiving or sending intercommunication message, the intercom antenna is to be built in the terminal
Meander line antenna；
The feeding point formed on the intercom antenna, for powering；
The grounding point formed on the intercom antenna, for the ground terminal by static discharge to the terminal；
First active switching element is connected on feed circuit corresponding with the feeding point；
Second active switching element is connected on earthed circuit corresponding with the grounding point；
Intercom module is connect with the described first active switching element and the second active switching element respectively, is used
In when receiving the frequency error factor for carrying target frequency instruction, according to the switch of the frequency that obtains in advance and active switching element
The corresponding relationship of state is selected and the target frequency from the described first active switching element and the second active switching element
The active switching element of the corresponding first object of rate and determine corresponding with the target frequency active switching element of first object
First object switch state；According to the first object switch state of the active switching element of the first object, adjustment described first
The current switch states of the active switching element of target are to the first object switch state.
In one embodiment, the intercom module is also used to when the signal strength for detecting the intercommunication message
When less than preset threshold, according to the corresponding relationship of the switch state of the signal strength and active switching element that obtain in advance, from institute
Stating selected the second target corresponding with the signal strength in the first active switching element and the second active switching element has
Source switching element and the second target switch state for determining the active switching element of the second target corresponding with the signal strength；
According to the second target switch state of the active switching element of the second target, the active switching element of the second target is adjusted
Current switch states are to the second target switch state.
In one embodiment, the intercom built-in antenna is in the top of the terminal.
In one embodiment, the intercom module includes：
Intercom push key, power amplifier module, RF receiving and transmission module and microprocessor.
In one embodiment, the terminal further includes：
Audio component is connect, for exporting or receiving audio signal with the intercom module；
The intercom module, for via the intercom antenna receive intercommunication message from other terminals,
And exported by the audio component, alternatively, receiving the intercommunication message of user via the audio component and passing through the intercommunication
Communication antenna is sent.
In one embodiment, the audio component includes：
Microphone, for receiving audio signal；
Loudspeaker is used for output audio signal.
The technical scheme provided by this disclosed embodiment can include the following benefits：The technical solution passes through in terminal
In built-in intercom antenna, and the series active switching element in feed circuit and earthed circuit respectively, by adjusting active
The switch state of switching element realizes the frequency error factor of intercom antenna, due to the switch state of each active switching element
Only need to cover the wide frequency range of smaller strip, thus by adjusting the different switch states of different active switching elements, it will be able to it is real
Referring now to the complete covering of entire U wave band wireless communication bandwidth, so as to pass through intercommunication in the case where wireless signal is poor
Communication provides good communication effect for user, improves user experience.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is the block diagram of terminal shown according to an exemplary embodiment.
Fig. 2 is the block diagram of terminal shown according to an exemplary embodiment.
Fig. 3 is the structural schematic diagram of feeding point and grounding point shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
In the prior art, mobile phone is only successfully accessed the wireless network based on communication standard, such as WiFi, 2G, 3G, 4G or 5G
After network, it could write to each other with other mobile phones, however, in the place that forest etc. covers without wireless network, user
It can not be got in touch with other users using mobile phone；In this case, intercom and neighbouring user can be used in user
Carry out intercommunication call, still, this requires user must carrying mobile phone and intercom simultaneously, and intercom general size compares
Greatly, antenna is external, heavy and unsightly, causes user to carry and use equal inconvenience, influences user experience.
To solve the above-mentioned problems, the embodiment of the present disclosure provides a kind of terminal, including：Intercom antenna, intercommunication are logical
Believe antenna, for receiving or sending intercommunication message, the intercom antenna is the meander line antenna for being built in the terminal；?
The feeding point formed on the intercom antenna, for powering；The grounding point formed on the intercom antenna, is used for
By static discharge to the ground terminal of the terminal；First active switching element is connected on feed electricity corresponding with the feeding point
On the road；Second active switching element is connected on earthed circuit corresponding with the grounding point；Intercom module, respectively with
The first active switching element and the second active switching element connection, for when the frequency for receiving carrying target frequency
When switching instruction, according to the corresponding relationship of the switch state of the frequency and active switching element that obtain in advance, have from described first
The active switching member of first object corresponding with the target frequency is selected in source switching element and the second active switching element
Part and the first object switch state for determining the active switching element of first object corresponding with the target frequency；According to described
The first object switch state of the active switching element of first object, adjusts the current switch of the active switching element of the first object
State is to the first object switch state.
Terminal in the embodiment of the present disclosure can be mobile phone, tablet computer or wearable device etc..The embodiment of the present disclosure
In, by built-in intercom antenna, and the series active switching element in feed circuit and earthed circuit respectively in the terminal,
By adjusting the switch state of active switching element, the frequency error factor of intercom antenna is realized, due to each active switching member
The switch state of part only needs to cover the wide frequency range of smaller strip, thus by adjusting the different switch shapes of different active switching elements
State, it will be able to the complete covering for entire U wave band wireless communication bandwidth is realized, so as to the situation poor in wireless signal
Good communication effect is provided for user by intercom down, improves user experience.
Fig. 1 is a kind of block diagram of terminal shown according to an exemplary embodiment, as shown in Figure 1, terminal 10 includes：Intercommunication
Communication antenna 11, feeding point 12, grounding point 13, the first active switching element 14, the second active switching element 15 and intercom
Module 16, wherein：
Intercom antenna 11, for receiving or sending intercommunication message, the intercom antenna is to be built in the end
The meander line antenna at end；
The feeding point 12 formed on the intercom antenna, for powering；
The grounding point 13 formed on the intercom antenna, for the ground terminal by static discharge to the terminal；
First active switching element 14, is connected on feed circuit corresponding with the feeding point；
Second active switching element 15, is connected on earthed circuit corresponding with the grounding point；
Intercom module 16 is connect with the described first active switching element and the second active switching element respectively,
For when receiving the frequency error factor for carrying target frequency instruction, according to opening for the frequency obtained in advance and active switching element
The corresponding relationship of off status is selected and the target from the described first active switching element and the second active switching element
The active switching element of the corresponding first object of frequency and the determining active switching element of first object corresponding with the target frequency
First object switch state；According to the first object switch state of the active switching element of the first object, described the is adjusted
The current switch states of the active switching element of one target are to the first object switch state.According to user demand, different
The different conditions of the different active switching element of frequency usage.
Wherein, the active switching element of the first object may include the described first active switching element and/or described
Two active switching elements.
Exemplary, intercom antenna refers to the U wave band radio antenna for being communicated between intercom, intercommunication
The operating frequency range of communication antenna is, for example, 400-470MHz, and intercom antenna is built-in antenna.Optionally, intercom
Built-in antenna in the top of the terminal, can be effectively reduced user's hand held terminal may the influence caused by intercommunication information, change
Kind actual user's experience.
It is exemplary, 3GPP antenna, wireless lan antenna, GPS antenna etc. can also be configured in the terminal, wherein intercommunication
The communication antenna interference and insulation between 3GPP antenna, wireless lan antenna, GPS antenna respectively；3GPP antenna for example can be
Support the wireless antenna of the cellular mobile communications such as 2G, 3G, 4G or 5G.In the embodiment of the present disclosure, terminal can either support that 3GPP is logical
Letter and wireless LAN communication, can also support intercom, to pass through intercom in the case where wireless signal is poor
Good communication effect is provided for user.
Exemplary, the intercom module includes：Intercommunication (PTT, push to talk) key and for intercommunication believe
Number treatment process in involved power amplifier module, RF receiving and transmission module and microprocessor (MCU) etc..
Exemplary, the terminal further includes：Audio component is connect, for exporting or receiving with the intercom module
Audio signal.The intercom module, for via the intercom antenna receive intercommunication message from other terminals,
And exported by the audio component, alternatively, receiving the intercommunication message of user via the audio component and passing through the intercommunication
Communication antenna is sent.
Optionally, the audio component includes：Microphone and loudspeaker；Microphone is for receiving audio signal；Loudspeaker
For output audio signal.
It should be noted that intercom module can be with the communication module sharing audio of other in terminal component, display
Screen, power supply module etc. improve the compatibility of system, reduce terminal cost.
Exemplary, the intercom module is also used to preset when the signal strength for detecting the intercommunication message is less than
When threshold value, according to the corresponding relationship of the switch state of the signal strength and active switching element that obtain in advance, have from described first
The active switching member of the second target corresponding with the signal strength is selected in source switching element and the second active switching element
Part and the second target switch state for determining the active switching element of the second target corresponding with the signal strength；According to described
Second target switch state of the active switching element of the second target adjusts the current switch of the active switching element of the second target
State is to the second target switch state.Wherein, the active switching element of the second target may include described first active
Switching element and/or the second active switching element.Alternatively, the signal strength of intercommunication message is detected in the terminal, according to reality
When the signal strength that detects, automatic Iterative finds optimal switch state.
The technical scheme provided by this disclosed embodiment by built-in intercom antenna in the terminal, and is being presented respectively
Series active switching element in circuit and earthed circuit realizes that intercommunication is logical by adjusting the switch state of active switching element
The frequency error factor for believing antenna, since the switch state of each active switching element only needs to cover the wide frequency range of smaller strip, thus
By adjusting the different switch states of different active switching elements, it will be able to realize for entire U wave band wireless communication bandwidth
Complete covering, so as to provide good communication effect by intercom in the case where wireless signal is poor for user,
It so, it is possible to improve user experience.
Fig. 2 is a kind of block diagram of terminal shown according to an exemplary embodiment, as shown in Fig. 2, embodiment shown in Fig. 1
On the basis of, this disclosure relates to terminal 20 include：Intercom antenna 11, feeding point 12, grounding point 13, the first active switching
Element 14, the second active switching element 15, intercom module 16 and audio component 21, wherein：
Audio component 21 is connect, for exporting or receiving audio signal with the intercom module；
The intercom module 16 disappears for receiving the intercommunication from other terminals via the intercom antenna
It ceases and passes through the audio component and export, alternatively, receiving the intercommunication message of user via the audio component and by described
Intercom antenna is sent.
About intercom antenna 11, feeding point 12, grounding point 13, the first active switching element 14, the second active switching
Element 15, the function of intercom module 16 and connection relationship may refer to the explanation in embodiment illustrated in fig. 1.
The technical scheme provided by this disclosed embodiment, by terminal built-in intercom antenna, intercom module
The compatibility of system can be improved with the communication module sharing audio component of other in terminal, reduce terminal cost.
As a kind of possible embodiment, a kind of scheme for integrating U wave band radio antenna in the terminal is provided here,
Specifically, built-in U wave band radio antenna (400-470MHz) at the terminal, reaches miniaturization U wave band radio antenna
Effect, while can be with compatible design routine external antenna；U wave band radio antenna day is built at the top of terminal, can be had
Effect reduces the influence held, and improves actual user's experience.Meanwhile passing through space isolation, horizontal polarization and vertical polarization isolation, frequency
The isolation methods such as Duan Zishen isolation realize that (operating frequency range is, for example, U wave band radio antenna with the primary antenna in terminal
700-2700MHz), diversity antenna (operating frequency range is, for example, 700-2700MHz), (operating frequency range is for example for GPS antenna
It is dry between 1525-1625MHz), WIFI antenna (operating frequency range is, for example, 2400-2500MHz, 5150-5850MHz)
Isolation is disturbed, interfering with each other between all types of antennas is minimized, meets the good communications experience under various severe scenes
(short distance, long haul communication；Voice-frequency telephony, video calling).
In the prior art, terminal, such as mobile phone are not intercommunication functions, and U wave band radio antenna in intercom
It is usually external.
In the present embodiment, the U wave band radio antenna for being built in terminal can regard the deformation of IFA form as, because of U
The operating frequency range of wave band radio antenna is 400-470MHz, and by taking 400MHz as an example, the corresponding wavelength of 400MHz is longer,
Wavelength is 750mm, and quarter-wave is 187.5mm, and usually mobile phone width all between 60-80mm, in order to by U wave band without
Line communication antenna is built in terminal, the pattern of U wave band radio antenna can be walked into meander line, can regard folding as
IFA form.And built-in antenna the problem of bringing is exactly the bandwidth decline of U wave band radio antenna, efficiency decline；To understand
Certainly bandwidth and efficiency, the present embodiment introduce active switching element in the terminal, optionally, the specific reality of active switching element
Now mode may include：Switch form or tuner form.
Fig. 3 shows the structural schematic diagram of feeding point and grounding point.Referring to Fig. 3, intercom antenna 34 is built in described
30 top of terminal, intercom antenna 34 are meander line antenna, the feeding point formed on the intercom antenna 34
(feed) 32, feeding point 32 is for powering；The grounding point (gnd) 31 and grounding point formed on the intercom antenna 34
33, grounding point is used for static discharge to the ground terminal of the terminal.It connects on feed circuit corresponding with the feeding point
At least one active switching element；It connects on earthed circuit corresponding with the grounding point gnd1 at least one active switching member
Part, at least one active switching element of connecting on earthed circuit corresponding with the grounding point gnd2.
By taking the working frequency of U wave band radio antenna switches between 409MHz and 430MHz as an example, at gnd2
When the switch state of active switching element is open circuit, the equivalent electrical length of entire U wave band radio antenna is adjusted to 430MHz
Near；When the switch state of active switching element at gnd2 is capacitor, such as when 0.5pF is between 2pF, entire U wave band
The equivalent electrical length of radio antenna is adjusted to 409MHz；Frequency error factor is thereby realized, each state only needs
The wide frequency range of smaller strip is covered, the complete covering of whole bandwidth (409-470MHz) is realized by switching different switch states.It can
Choosing, it for the control of the switch state of active switching element, can be designed to open loop (openloop), such as according to actually making
Frequency finds the switch state pre-set, can also be designed to closed loop (close loop), such as by terminal
Middle increase detection circuit passes through the signal strength for the intercommunication signal that real-time detection arrives, the optimal switch state of Automatic-searching.
The technical scheme provided by this disclosed embodiment by built-in intercom antenna in the terminal, and is being presented respectively
Series active switching element in circuit and earthed circuit realizes that intercommunication is logical by adjusting the switch state of active switching element
The frequency error factor for believing antenna, since the switch state of each active switching element only needs to cover the wide frequency range of smaller strip, thus
By adjusting the different switch states of different active switching elements, it will be able to realize for entire U wave band wireless communication bandwidth
Complete covering, so as to provide good communication effect by intercom in the case where wireless signal is poor for user,
It so, it is possible to improve user experience.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (6)
1. a kind of terminal, which is characterized in that including：
Intercom antenna, for receiving or sending intercommunication message, the intercom antenna is the song for being built in the terminal
Broken line antenna；
The feeding point formed on the intercom antenna, for powering；
The grounding point formed on the intercom antenna, for the ground terminal by static discharge to the terminal；
First active switching element is connected on feed circuit corresponding with the feeding point；
Second active switching element is connected on earthed circuit corresponding with the grounding point；
Intercom module is connect, for working as respectively with the described first active switching element and the second active switching element
When receiving the frequency error factor instruction for carrying target frequency, according to the switch state of the frequency and active switching element that obtain in advance
Corresponding relationship, from the described first active switching element and the second active switching element select with the target frequency pair
The first of the active switching element of the first object answered and the determining active switching element of first object corresponding with the target frequency
Target switch state；According to the first object switch state of the active switching element of the first object, the first object is adjusted
The current switch states of active switching element are to the first object switch state.
2. terminal according to claim 1, which is characterized in that the intercom module is also used to described when detecting
When the signal strength of intercommunication message is less than preset threshold, according to the switch shape of the signal strength and active switching element that obtain in advance
The corresponding relationship of state is selected and the signal strength from the described first active switching element and the second active switching element
The active switching element of corresponding second target and determine the of the active switching element of the second target corresponding with the signal strength
Two target switch states；According to the second target switch state of the active switching element of the second target, second mesh is adjusted
The current switch states of source switching element are indicated to the second target switch state.
3. terminal according to claim 1, which is characterized in that the intercom built-in antenna is in the top of the terminal
Portion.
4. terminal according to claim 1, which is characterized in that the intercom module includes：
Intercom push key, power amplifier module, RF receiving and transmission module and microprocessor.
5. terminal according to claim 1, which is characterized in that the terminal further includes：
Audio component is connect, for exporting or receiving audio signal with the intercom module；
The intercom module, for receiving the intercommunication message from other terminals via the intercom antenna and leading to
The audio component output is crossed, alternatively, receiving the intercommunication message of user via the audio component and passing through the intercom
Antenna is sent.
6. terminal according to claim 5, which is characterized in that the audio component includes：
Microphone, for receiving audio signal；
Loudspeaker is used for output audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717455.3A CN108879100B (en) | 2018-06-29 | 2018-06-29 | Terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717455.3A CN108879100B (en) | 2018-06-29 | 2018-06-29 | Terminal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108879100A true CN108879100A (en) | 2018-11-23 |
| CN108879100B CN108879100B (en) | 2021-08-03 |
Family
ID=64298232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717455.3A Active CN108879100B (en) | 2018-06-29 | 2018-06-29 | Terminal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108879100B (en) |
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|---|---|---|---|---|
| US5838285A (en) * | 1995-12-05 | 1998-11-17 | Motorola, Inc. | Wide beamwidth antenna system and method for making the same |
| CN101459720A (en) * | 2007-12-14 | 2009-06-17 | 康佳集团股份有限公司 | Mobile phone having intercom function |
| CN202334925U (en) * | 2011-12-13 | 2012-07-11 | 深圳市富友昌科技有限公司 | Handheld-type terminal with functions of interphone, card-inserted MP3 playing and radio |
| CN204795011U (en) * | 2015-07-23 | 2015-11-18 | 福建泉州市铭源通电子有限公司 | Intercom |
| CN105161844A (en) * | 2015-07-31 | 2015-12-16 | 瑞声声学科技(苏州)有限公司 | Mobile terminal |
| CN105680176A (en) * | 2015-12-18 | 2016-06-15 | 联想(北京)有限公司 | Antenna performance optimization method and electronic equipment |
| CN205583141U (en) * | 2016-04-05 | 2016-09-14 | 惠州Tcl移动通信有限公司 | Restructural antenna and mobile terminal |
| CN205811034U (en) * | 2016-06-14 | 2016-12-14 | 深圳森虎科技股份有限公司 | The transmitter receiver of high-efficient high performance built-in aerial |
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2018
- 2018-06-29 CN CN201810717455.3A patent/CN108879100B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5838285A (en) * | 1995-12-05 | 1998-11-17 | Motorola, Inc. | Wide beamwidth antenna system and method for making the same |
| CN101459720A (en) * | 2007-12-14 | 2009-06-17 | 康佳集团股份有限公司 | Mobile phone having intercom function |
| CN202334925U (en) * | 2011-12-13 | 2012-07-11 | 深圳市富友昌科技有限公司 | Handheld-type terminal with functions of interphone, card-inserted MP3 playing and radio |
| CN204795011U (en) * | 2015-07-23 | 2015-11-18 | 福建泉州市铭源通电子有限公司 | Intercom |
| CN105161844A (en) * | 2015-07-31 | 2015-12-16 | 瑞声声学科技(苏州)有限公司 | Mobile terminal |
| CN105680176A (en) * | 2015-12-18 | 2016-06-15 | 联想(北京)有限公司 | Antenna performance optimization method and electronic equipment |
| CN205583141U (en) * | 2016-04-05 | 2016-09-14 | 惠州Tcl移动通信有限公司 | Restructural antenna and mobile terminal |
| CN205811034U (en) * | 2016-06-14 | 2016-12-14 | 深圳森虎科技股份有限公司 | The transmitter receiver of high-efficient high performance built-in aerial |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108879100B (en) | 2021-08-03 |
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